baber/WOPTO huggingface dataset:
Patent DE-2539485-A1 (DE)
Title: Electronic timer for speed measurements - has 1 khz oscillator and capacitor:discharge firing with solid:state display
Inventor: GANGUIN HANS-JUERGEN ING GRAD
IPC: G01P3/64
Filed: 1975-09-05
Abstract: The electronic timer consists of a display with light-emitting diodes and 4-digit seven-segment display for indicating times up to 9,999 seconds. The device is battery-powered with a rechargeable nickel-cadmium cell giving around 5 volts output. A slide-switch switches the circuit on and if the two external circuits, connected via cable to the two outlet sockets, are connected both green diodes are illuminated. A 1 kHz oscillator runs but the display is frozen until the push-button switch is operated to fire the circuit and start the timing cycle. When the operate button is pressed a capacitor circuit discharges into the external load circuit e.g. detonator etc. By operating a second switch, for example, a foot switch connected to the timer byc able, triggers the firing of the second external device. At the same time, the counter is stopped and the interval time between operation of the first and second switch is displayed.
Patent DE-2540874-A1 (DE)
Title: Tough, cobalt doped, acicular gamma ferric oxide - having high coercive force due to acid pretreatment
Inventor: OHLINGER MANFRED DIPL CHEM DR
IPC: G11B5/706
Filed: 1975-09-13
Abstract: Prod. having high coercive force is produced by pptg. Co(OH)2 from a Co(II) salt soln. with ammonia onto goethite crystallised from an alkaline soln. The prod. is subjected to reduction into magnetite. Subsequently the magnetite is oxidised with O2 at 200-400 degrees C to produce cobalt doped gamma-Fe2O3. Process is improved by pretreating the surface of goethite (before the introduction of the Co(II) salt) with an acid having pK 4.8; adjusting pH to 3-7 and maintaining the surface acidity within this range to the end of the redn. process. gamma-Fe2O3 suitable for magnetic recording is produced. Its coercive force is increased (compared with the known material) by the increased quantity of the cobalt dopant. The above process permits an increase in the cobalt doping without impairing the thermal stability and the toughness of the product. The reduction stage can be carried out at temps. as low as 250-290 degrees C.
Patent DE-2545363-A1 (DE)
Title: Wall cutter for restoration of tunnel clearance - has parallel cuts made by circular saws and intervening ribs broken away
Inventor: PAUL FRIEDRICH
IPC: E21D9/00
Filed: 1975-10-09
Abstract: The process is for correcting the open space clearance in tunnels which have been in use for some time. Stone or layers of masonry are usually removed manually and cause prolonged closure of railway tunnels. Cuts are instead made in the stone surface, or masonry, running parallel. The ribs resulting from this cutting are then broken away. The cuts may be deeper than the vertical interval width between them. The cuts may be made by offset rotating circular saw blades on a wagon mounted on parallel driven shafts. Toothed chains may serve to break away the ribs.
Patent DE-2546637-A1 (DE)
Title: Clamping wedge for securing core laminations - has middle line fold and its taper continuously increased from edge to middle line
Inventor: HEINEMANN JUERGEN
IPC: H01F27/30
Filed: 1975-10-16
Abstract: The clamping wedge is intended for pressing and clamping sheet metal laminations in coil formers, respectively in core apertures of such formers, especially in the manufacture of miniature transformers or similar inductors. The wedge is produced by folding a parallel sheet metal strip along the middle line of the long side. The tapering (1) of the wedge is increased continuously from the outer sheet metal thickness (2). Preferably the wedge has an angular cross section. A nicket-silver alloy of spring hardness is used as suitable material.
Patent DE-2547664-A1 (DE)
Title: Cylindrical piston operated air spring - has dual operating pistons and piston rods in single thin cylinder
IPC: F16F9/02
Filed: 1975-10-24
Abstract: An air spring has a cylindrical housing with a piston rod that serves as a recuperator piston. The rod is connected to a guide piston. Even for large lengths of travel the cylinder can be kept very thin. At the other end of the housing (1) is a further cylindrical piston rod (31) with its own guide or control piston (211). The two piston rods (3, 31) have different lengths of travel and can have different cross sections. At least one of the piston rods has an end stop (311) to limit its movement into the cylinder.
Patent DE-2550825-A1 (DE)
Title: Hook connector for container parts - has single hook mountable on eccentric in either part and rotated by key
Inventor: GRONBACH WILHELM
IPC: E05B65/08
Filed: 1975-11-12
Abstract: The hook connector for building elements is esp. for parts of a cool container made of foamed material and comprises two housings secured to the respective container parts. Each housing contains an eccentric rotatable by a square section key from outside the container. A hook is connected to one of the eccentrics and is movable by rotation into engagement with the other eccentric. the hook is releasably held in engagement with the eccentric by a spring and may be mounted to either eccentric as may be required.
Patent DE-2554098-A1 (DE)
Title: Screening partition for baths and showers - with panels hung eccentrically and provided with magnets along bottom edge to hold against seal
Inventor: BAUS HEINZ GEORG
IPC: A47K3/34
Filed: 1975-12-02
Abstract: The screening partition has several separate panels (1-3) of metal framed glass, each being suspended from an overhead guide rail and running one behind the other. The bottom edge (9) of each panel contacts the vertical face of a stepped bottom guide (4). These bottom edges have guide rollers (11) contacting the bottom guide for easy manipulation, and are fitted with permanent magnets (10). Pole strips (8, 12) are positioned along each vertical face of the bottom guide, the magnetic attraction ensuring a continuing seal. At the top, each panel is hung eccentrically, gravity being used to supplement the magnetic force retaining sealing contact at the bottom.
Patent DE-2555904-A1 (DE)
Title: Mini-bus interior ventilating device - has hinged forward opening roof panel to direct air to transverse duct with various width openings
Inventor: GOLDAMMER HANS
IPC: B60H1/24
Filed: 1975-12-12
Abstract: Device for ventilating the interior particularly of a mini bus. There is an opening in the roof with a closing panel which opens towards the vehicle front, hinged at the rear. Inside there are guides to direct the air in different directions. A toggle mechanism actuates the hinged panel, which is slightly bent down at its front and reinforced at each side. Air passages are carried along the underside length of the roof, with orifices provided at intervals. The device is an improvement on normal front air intakes which can impede frontal view.
Patent DE-2601038-A1 (DE)
Title: Temperature compensation system for tunnel furnaces - blows air into furnace for breaking up horizontal hot gas stream
Inventor: LEISENBERG MANFRED
IPC: F27D7/00
Filed: 1976-01-13
Abstract: System for compensation of temperatures in the heating zone of a tunnel furnace, in which the combustion characteristics can be significantly improved. The combustion zone can be made longer than previously and higher furnace performance is achieved or the combustion zone can be shortened. Air is blown into the furnace at a specified flow rate and pressure, vertically downwards through openings (11,12,13) through the ceiling (4) of the furnace (1). This quantity of air breaks up the horizontal flow the combustion gases in the heating zone. The holes can be arranged preferably into several rows and connected to an air supply ducts (15).
Patent DE-2603789-A1 (DE)
Title: Monitoring device for insulation resistance - has bridge with amplifier in output diagonal for signalling and communication systems
Inventor: QUANTE HERMANN
IPC: H04B3/46
Filed: 1976-02-02
Abstract: The monitoring device has a four-arm bridge which can be coarsely balanced and continuously finely balanced. An amplifier is connected to bridge diagonal and its output is connected to a device displaying bridge imbalance. Test circuit comprises two resistors in the bridge (27) arms (28, 29) consisting of the system (10) insulation resistances (20, 20') connected to the supply source (11) positive and negative terminals. An amplifier (31) in the bridge diagonal (30) reverses the connections of balancing resistors (21-23) when the ratio of insulation resistance (20, 20') is reversed. The amplifier (31) is followed by two variable gain amplifiers (32, 33). Their gain is adjusted together with the zero adjustment by resistors (21-23), so that the same relative changes (in percent) of resistance ratio (20, 20') produces the same signal applied to the display device (34, 35) of each amplifier (34, 35).
Patent DE-2604317-A1 (DE)
Title: Coupling with tension straps between two concentric rings - has symmetrically arranged overload straps between second and third rings
Inventor: WEISS HERMANN
IPC: F16D9/04
Filed: 1976-02-05
Abstract: The Coupling has flexible tension straps between two concentric sections and flexible overload straps (16, 18) between one of the parts (2) and a third concentric section (3). The tension straps between the first and second parts are arranged for the adjacent ends of adjacent straps to be connected to the same section. The overload straps are arranged in separate pairs each having adjacent ends (20) connected to the one, and mutually remote ends (21, 22) connected to the other part. The overload pairs are arranged symmetrically, and there may be only two such pairs at diametrically opposite locations of the second and third parts.
Patent DE-2605514-A1 (DE)
Title: Press for conical refractory bricks - has charging slide and associated wiper blade moving over press mould
Inventor: BRAND HEINZ
IPC: B28B7/00
Filed: 1976-02-12
Abstract: The press for mfr. of conical refractory bricks comprises counter-moving press tools (2) between which is a press mould (3) into which the tools move. The upper tool has a conical pressuring surface (4). A charging device (5) comprises a slide (6) which moves across the press mould to introduce material (7) into the mould of which the bottom is formed by the lower tool. The charging device has a wiper device (8) with a wiper blade (9) which is mounted behind the slide. On travelling over the filled mould, the blade is dipped in the material on one side of the mould according to the conicity of the pressing surface of the upper tool.
Patent DE-2623164-A1 (DE)
Title: Speech sounds production apparatus - converts sound to voltage with modulation by speech signal voltage proportional to speech dynamics
Inventor: SCHUNK HELMUT
IPC: G10L21/00
Filed: 1976-05-22
Abstract: Speech sounds are produced by converting a sound to a voltage with a temporarily constant mean value, and modulating it with the voltage of a speech signal proportional to speech dynamics. A given fraction of the speech signal is added to the modulated voltage, then the sum signal is restricted with respect to frequency band. The appts. comprises a dynamic compressor (3) which converts sound signals to a constant mean value at the output of which is a modulator (4). A speech signal transmitter (5, 6) is connected to a variable amplifier (9) and to a low-pass filter (8) via an envelope rectifier (7). The filter output is connected to the modulator input, and the modulator and amplifier outputs are connected to the inputs of a sum amplifier (10) of which the output is connected to reproduction appts. (12, 13).
Patent DE-2623750-A1 (DE)
Title: Frame assembly for windows - in made from different profiles held temporarily by clamps and spacers
IPC: B21D47/04
Filed: 1976-05-26
Abstract: The frame may be a fixed or moving frame or frame with glass holding profiles, with or without seals. It is used for windows and doors. The fixed and moving frame assembly of a window is made with common operations using fixed and moving frame profiles simultaneously. At least two different frame profiles (1, 3) are joined detachably together by a strap (5). These frame components are cut together to required lengths and with required mitred corners. The frame profiles are subsequently welded together to make required individual frames. The clamping arrangements are subsequently removed. Spacers (4) are placed between the frame profiles in order to ensure the final clearance between them during the production operations. These spacers are removed after completion.
Patent DE-2643313-A1 (DE)
Title: Barrel lock with locking magnets - has locking bar sliding radially and positioned by both magnets and pins
Inventor: WOLF HEINZ
IPC: E05B47/00
Filed: 1976-09-25
Abstract: The barrel-type lock has pins sliding radially and a key to fit in it. Locking magnets (4, 5) are also provided, controlled by the key (9). These can have a locking bar sliding radially, and which in the locking position protrudes beyond the barrel portion (I). The magnets can be arranged to turn on a support (16) fitting in the barrel portion and guiding the locking bar, which can have protrusions (38, 39), 41) extending in the direction of the pin drillings and the key slot. When moved inwards, one or more of the protrusions can engage at its free end in a pin drilling, and another in the key slot.
Patent DE-2644412-A1 (DE)
Title: Stacking chair with swivel back rest and seat - has movable fittings for automatically adapting back rest height to position of seat
Inventor: BELTZIG GUENTER
IPC: A47C1/032
Filed: 1976-10-01
Abstract: The chair is provided with a rigid leg frame (16) on which the seat (2) and back rest (3) are swivel mounted for movement about a common axis. The articulated axis (4) which connects the seat and backrest (3) together is mounted on a short single-armed lever (5) at about seat level so as to swivel up and down on the leg frame (1b). The seat (2) is supported on one end of an articulated support (6) wherein the other end of the latter is mounted beneath the seat face for swivel movement up and down on the leg frame (1b). The back rest (3) is mounted about half way up for movement up and down in a guide and can swivel about the connecting point with the upper part of the leg frame (1b). This connecting point between the backrest (3) and the chair leg frame (1b) which forms the swivel axis for the back rest is either fixed to the backrest (3) and movable in the frame (1b) or fixed to the latter and movable on the back rest.
Patent DE-2646933-A1 (DE)
Title: Drive for turntable of record player - has filter between speed pick=up and control element to prevent correction of motor speed changes due to rapid loading
Inventor: FRERICHS HANS-GUENTER ING GRAD
IPC: G11B19/28
Filed: 1976-10-18
Abstract: The record player turntable drive has a motor whose shaft is connected to a speed pickup. Its speed is controlled by a control circuit regulated according to a control voltage. The motor is connected to the turntable by a belt. A filter is provided in the control circuit between the speed pickup and the control element. Motor speed changes due to quick load changes up to the frequency whose period is determined by the belt revolution are only slightly corrected.
Patent DE-2700262-A1 (DE)
Title: Substd. thiophenes prepn. by dehydrogenation - of dihydrothiophenes or disulphido-bis-dihydrothiophenes, using halogen (cpds.)
Inventor: ROSSY PHILLIP A DIPL CHEM DR
IPC: C07D333/36
Filed: 1977-01-05
Abstract: Prepn. of thiophenes of formula involves (i) dehydrogenation of dihydrothiophenes of formula (II) by means of phosphoric acid chloride or bromide SO2Cl2, SO2Br2, Cl2, Br2, I2, or R10 -CO-N(X)-R9 or (ii) dehydrogenation of disulphido-(3,3')-bis-(dihydrothiophenes) of formula (III): or of dihydrothiophenes of formula (IV) by means of SO2Cl, SO2Br2 or Cl2. In the formula R1 is a gap. (V):- R3-O-, R3-S-, r3-2N-, R3-SO3-, R3-CO-S- or R3-CO-O-; R2 is -CO-OR3, -CN, -CO-NR32 or -CO-R4; R3 and R4 are (cyclo)aliphatic, araliphatic or aromatic gps, and R3 may also be H; R1 and R2 may also together form a gp. R5 is H; R6 is -N-R8, -O-, or -S-; R7 is a (cyclo)aliphatic araliphatic or aromatic gp., or R5 and R7 may form, with the 2 adjacent C atoms, part of an aromatic residue; R8 is H or an aliphatic gp.; R9 is H or -CO-R10-R10 is an (ar)aliphatic or aromatic gp., or 2 R10 gps. may form together a -CO-R11 or -NX-C(R3)2-CO- gp.; R11 is an alkylene gp.; R12 has the same meaning as R1; R13 has the same meaning as R12 or when R12 is (V), R13 may be a gp.: X is Cl or Br; and n = 0 or 1.
Patent DE-2701530-A1 (DE)
Title: Battery terminal with gland seal - has sealing ring of compressed acid-resistant elastomer allowing some terminal movement
Inventor: SCHAEFER ANTON
IPC: H01M50/172
Filed: 1977-01-15
Abstract: The gland fits into a recess (8) in the battery cover plate (7). The terminal (10) protrudes through a hole (9) in the recess. The lower gland part (5) fits round the terminal, and a nut on the inside of the cover plate (7) bears against the bottom of the recess. The upper gland part (6) screws into the lower part and compresses a sealing ring (3) so that a leakproof joint is formed round the terminal. The compression ring is made of an acid resistant elastomer. It seals the terminal outlet but also allows small movements of the terminal such as result from temperature changes or enlargements of the electrode with time.
Patent DE-2704149-A1 (DE)
Title: Hospital bed overhead reading and writing table - has desk like platform suspended from horizontal radial arm extending from main post secured to headboard
Inventor: FABIAN RALF
IPC: A47B23/00
Filed: 1977-02-02
Abstract: The hospital bed accessory consists of a support for a desk-like platform which is within reach of a patient, especially one who has to lie prone on the bed. The accessory includes a vertical main post clamped to the headboard and a horizontal radial arm extending out from the main post over the bed. A second post is suspended from the outer end of the radial arm so as to bring the desk-like platform to convenient reach of the patient. Clips are provided on the desk for holding writing and reading materials.
Patent DE-2712275-A1 (DE)
Title: Tape cassette holding device - has integral moulding with holding peg engaging centrally and at right angles to supporting plate
Inventor: STEIPE LEO DR
IPC: G11B23/023
Filed: 1977-03-21
Abstract: The cassette holding device has a one-piece moulding with a supporting plate (11) and a holding peg (12) which engages centrally and at right angles on it. This peg has longitudinal slits (15) over part of its length to form spring sections and is widened at its free end to form catching elements (13). These catching elements merge into wedge faces (14) which extend obliquely to the free end and the longitudinal centre axis. The moulding can consist of a plastic material or a metallic material. The longitudinal slits can extend over the whole length of the peg. They can be made in the form of a cross.
Patent DE-2712560-A1 (DE)
Title: Dried fruit esp. apple chips prepn. by freeze-drying - after dipping in aq. esp. ascorbic acid soln. to prevent browning
Inventor: MUNK WERNER GEORG
IPC: A23B7/024
Filed: 1977-03-22
Abstract: Dried fruit, esp. apple slices or chips, are prepd. by (i) washing, removing pips and cores, and slicing (ii) dipping in an aq. edible soln. to prevent browning; (iii) freeze-drying in standard plant, pref. after blanching; and (iv) packing under a protective atmos. to prevent air- and water-vapour access. The prods. are ready for immediate consumption, as crisp, mouth-melting foods, and are pref. derived from apples, as well as fruit and vegetables having a similar consistency as apples, e.g. pears, celery and carrots.
Patent DE-2718306-A1 (DE)
Title: Spring-biased metal clasp for handbags - has interengaging pin and recess covered during spray dyeing to retain dimensions
Inventor: GLIEMANN GERALD
IPC: A45C13/10
Filed: 1977-04-25
Abstract: The spring-biased clasp for handbags, clothing items and the like comprises a double-armed swivel lever attached to a support plate (1) which has a protruding pin (13) which engages in a recess (15) of one arm (12) of the swivel lever when the latter is closed. The clasp can be sprayed with a dye to match the surrounding article but the engaging part of the pin and preferably the recess as well are to remain free of paint so as not to affect the dimensions of this clasp which would prevent a clear click closing. To achieve this the pin and recess are kept covered during the dyeing process which is more easily obtained if the pin is fitted into recess. If the recess is not kept covered then a suitable cap of plastics, rubber or the like can be placed over the pin before the dyeing process.
Patent DE-2719038-A1 (DE)
Title: Polysiloxane oils contg. cyclic di:organo-polysiloxane(s) - to improve heat stability, and used as heat transfer media, lubricants for (in)organic fibres and for prepn. of greases hydraulic oils, etc.
Inventor: BURKHARDT JUERGEN DIPL CHEM DR
IPC: C08G77/04
Filed: 1977-04-28
Abstract: Silicone oils consists of (A) diorgano-polysiloxanes with triorgano-siloxy ends gps., and contain (B) 1-10(2-7) wt.% cyclic diorgano-polysiloxanes with >=7 (pref. 8-9) diorgano-siloxane gps. per molecule. Pref. the diorgano-siloxane units in (B) are the same in type and amt. as those in (A). (B) is of formula (R2SbO)p, (in which R is an alkyl, alkenyl or aryl gp., pref. >=50-(80)% being methyl and the remainder phenyl; p is >=7, pref. 8-9). Splitting and reforming of siloxane bonds in (A) by heat, esp. in presence of residual traces of catalyst, is reduced by addn. of (B), giving oils with improved heat stability and resistance to viscosity changes.
Patent DE-2719342-A1 (DE)
Title: Forced air filter for mines and tunnels - having perforated plate above dust extractor screw and large outlets to prevent pressure surges causing explosions
Inventor: HOELTER HEINZ
IPC: B01D46/04
Filed: 1977-04-30
Abstract: The parent patent describes a filter intended esp. for under ground mining and tunnels, consisting of a tubular housing containing a series of star-shaped filters; the dust falls to the V-shaped bottom of the housing, from which it is extracted by a revolving screw conveyor. In the parent patent of addition, a sieve plate or perforated plate is mounted above the dust-extracting screw. Pref. the plate is spring-mounted, and some of the filter elements have baffle plates on the upstream side, esp. a perforated plate to deflect excessive dust from the upstream filters. A pair of perforated plates may be used in which the perforations are staggered from one plate to the other. The perforated plate immediately above the dust extractingscrew prevents fast circulating air in the housing from agitating the dust and consequent recirculation. Free escape of gas is provided.
Patent DE-2722135-A1 (DE)
Title: Mounting for wide angle windscreen wiper - has holder mounted on arm by inclined pivot with stops to limit tilt on arm
Inventor: SUGIARTO SUGI
IPC: B60S1/40
Filed: 1977-05-16
Abstract: The wiper blade holder (10) is mounted on the wiper arm by an inclined pivot (1). Profiled arms (8) on either side of the pivot limit the amount of relative swing of the wiper blade w.r.t. the wiper arm. The drag action of the blade causes it to set its cleaning angle. When the blade tip reaches the edge of the windscreen, it tilts to lie flush with the edge. a wider windscreen area is thus cleaned without any complex linkage on the wiper arm.